Post learning assessment chapter 7 APES
Which interaction could potentially lead to coevolution?
A species of mouse becoming faster to escape a predator snake
A close look at almost any terrestrial community or ecosystem reveals that it consists of an ever-changing mosaic of patches of vegetation in different stages of _____.
succession
In some areas, ________ can rise or decline seasonally and from year to year because of variations in weather, such as a drought that causes decreases in available vegetation.
carrying capacity
The use of venom when attacking prey is an example of _____.
chemical warfare
Which four variables govern changes in population size?
births, deaths, immigration, emigration
Secondary ecological succession occurs in _____ areas.
disturbed
When two species compete with one another for the same resources, the ecological _____ overlap.
niches
What is the most often the limiting factor for populations on land ?
precipitation
What is the difference between commensalism and mutualism?
Commensalism benefits one species but has little effect on the other, and mutualism benefits both species.
A _____ species has slow population growth rates and long life spans, while _____ species have numerous small offspring and fast population growth rates.
K-selected; R-selected
Which type of environment is likely to experience primary succession?
abandoned parking lot or highway
Which species display predator-prey interactions?
grizzly bears and cutworm moths
Too much or too little of any physical or chemical factor can prevent the growth of a population, even if all other factors are at or near the optimum conditions. This ecological principle is called the _____.
limiting factor principle
What are the inertia and resilience properties of a typical grassland ecosystem?
low inertia and high resilience
The evolution of specialized beaks to take advantage of certain types of food is an example of _____.
natural selection